 Five English expressions with the word call. Number one, call it a day. To stop doing something, especially working, because the work is complete or because no more progress is being made. We've written 20 pages of the report. Let's call it a day. Number two, call the shots. To be in charge, to be the boss, to make the important decisions. Sorry, I can't give you approval for this part of the project. You should talk to Diana. She's the one calling the shots. It comes from the sports of pool or billiards and target shooting, where skilled players say exactly where they are going to put the ball or bullet before they shoot. Number three, call someone's bluff. To make someone prove something because you believe they are lying. For example, if your friend is bragging that he has $100,000 in his bank account, asking to see his bank statement would be calling his bluff. You're challenging him to prove that what he is saying is true. This expression comes from poker, in which a player can stay in the game by pretending that he has better cards than he really does. When you make someone show their cards to reveal the real situation, you are calling their bluff. Number four, wake up call. This expression has two meanings. First, a wake up call is when you are staying in a hotel and you ask the receptionist to call the telephone in your hotel room at a certain time in the morning to wake you up. I'd like a wake up call at 7.30 tomorrow morning, please. A wake up call can also mean a sign or signal that alerts you to danger or to a bigger problem. The fatal car accident last week was a wake up call for teenagers regarding the dangers of texting while driving. Number five, a close call. This expression also has two meanings. In a sports game or competition, if the difference between the winner and the others is very small. Currently, 49% of voters support Smith and 51% support Jones. This election is going to be a close call. A close call also means when something bad almost happened but didn't happen. It was a very close call. The firemen pulled her out of the burning car just a few minutes before it exploded. Thanks for watching English Tips from Espresso English. If you liked this video, please share it.